Trace number 2683096

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1 fixed? (MO) 27.3688 27.3774

General information on the benchmark

Name/OPT-BIGINT-LIN/aries-da_nrp/
normalized-aries-da_network_50_2__8_45__2048.opb
MD5SUM5a6a489f861071b99676244553a9826e
Bench CategoryOPT-BIGINT-LIN (optimisation, big integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark45008
Best CPU time to get the best result obtained on this benchmark124.271
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables204848
Total number of constraints150
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)102
Number of constraints which are nor clauses,nor cardinality constraints48
Minimum length of a constraint2048
Maximum length of a constraint18433
Number of terms in the objective function 204800
Biggest coefficient in the objective function 126454
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 6874183680
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 126454
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 6874183680
Number of bits of the biggest sum of numbers33
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
2.49/2.50	c constraints 150/0 clauses 0/0 units 0
2.49/2.50	c vars 204848
2.49/2.50	c objective 204800 + 0
27.18/27.20	s UNKNOWN

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2683096-1277506735/watcher-2683096-1277506735 -o /tmp/evaluation-result-2683096-1277506735/solver-2683096-1277506735 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683096-1277506735.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 570
/proc/meminfo: memFree=1840640/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=2280 CPUtime=0
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 260 0 0 0 0 0 0 0 25 0 1 0 91967026 2334720 180 1992294400 134512640 136421960 4290336016 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/570/statm: 570 180 135 467 0 101 0

[startup+0.0268819 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 570
/proc/meminfo: memFree=1840640/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=3004 CPUtime=0.02
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 467 0 0 0 2 0 0 0 25 0 1 0 91967026 3076096 354 1992294400 134512640 136421960 4290336016 18446744073709551615 135818305 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/570/statm: 751 356 135 467 0 282 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3004

[startup+0.10189 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 570
/proc/meminfo: memFree=1840640/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=5864 CPUtime=0.09
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 1363 0 0 0 9 0 0 0 25 0 1 0 91967026 6004736 910 1992294400 134512640 136421960 4290336016 18446744073709551615 135818192 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/570/statm: 1466 910 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.30091 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 570
/proc/meminfo: memFree=1840640/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=15472 CPUtime=0.29
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 4000 0 0 0 28 1 0 0 25 0 1 0 91967026 15843328 3097 1992294400 134512640 136421960 4290336016 18446744073709551615 134518227 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/570/statm: 3868 3097 135 467 0 3399 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15472

[startup+0.700953 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 570
/proc/meminfo: memFree=1840640/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=17836 CPUtime=0.69
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 5537 0 0 0 68 1 0 0 25 0 1 0 91967026 18264064 3607 1992294400 134512640 136421960 4290336016 18446744073709551615 135809771 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/570/statm: 4459 3607 137 467 0 3990 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17836

[startup+1.50104 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 571
/proc/meminfo: memFree=1819924/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=37936 CPUtime=1.49
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 9535 0 0 0 146 3 0 0 25 0 1 0 91967026 38846464 7605 1992294400 134512640 136421960 4290336016 18446744073709551615 135809578 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/570/statm: 9484 7605 141 467 0 9015 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37936

[startup+3.10021 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 573
/proc/meminfo: memFree=1797356/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=129736 CPUtime=3.09
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 31670 0 0 0 296 13 0 0 25 0 1 0 91967026 132849664 29740 1992294400 134512640 136421960 4290336016 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/570/statm: 32434 29741 193 467 0 31965 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 129736

[startup+6.30154 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 573
/proc/meminfo: memFree=1537080/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=385348 CPUtime=6.29
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 99214 0 0 0 585 44 0 0 25 0 1 0 91967026 394596352 92003 1992294400 134512640 136421960 4290336016 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/570/statm: 96337 92004 193 467 0 95868 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 385348

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 573
/proc/meminfo: memFree=1078900/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=822296 CPUtime=12.69
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 215899 0 0 0 1179 90 0 0 25 0 1 0 91967026 842031104 201684 1992294400 134512640 136421960 4290336016 18446744073709551615 135408026 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/570/statm: 205574 201685 193 467 0 205105 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 822296

[startup+25.5016 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 573
/proc/meminfo: memFree=210776/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=1658824 CPUtime=25.49
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 442912 0 0 0 2366 183 0 0 25 0 1 0 91967026 1698635776 412689 1992294400 134512640 136421960 4290336016 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/570/statm: 414706 412690 193 467 0 414237 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1658824



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+27.2017 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 573
/proc/meminfo: memFree=59124/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=1845140 CPUtime=27.18
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4202496 491211 0 0 0 2514 204 0 0 25 0 1 0 91967026 1889423360 444604 1992294400 134512640 136421960 4290336016 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/570/statm: 461285 444604 193 467 0 460816 0
Current children cumulated CPU time (s) 27.18
Current children cumulated vsize (KiB) 1845140

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

[startup+27.3098 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 573
/proc/meminfo: memFree=59124/2059040 swapFree=4139112/4192956
[pid=570] ppid=568 vsize=0 CPUtime=27.3
/proc/570/stat : 570 (pbct) R 568 570 341 0 -1 4194308 491308 0 0 0 2515 215 0 0 25 0 1 0 91967026 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/570/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 27.3
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 27.3774
CPU time (s): 27.3688
CPU user time (s): 25.1512
CPU system time (s): 2.21766
CPU usage (%): 99.9688
Max. virtual memory (cumulated for all children) (KiB): 1845140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.1512
system time used= 2.21766
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491308
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1
involuntary context switches= 43

runsolver used 0.052991 second user time and 0.141978 second system time

The end

Launcher Data 

Begin job on node082 at 2010-06-26 00:58:55
IDJOB=2683096
IDBENCH=71870
IDSOLVER=1192
FILE ID=node082/2683096-1277506735
PBS_JOBID= 11190595
Free space on /tmp= 62348 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB09/normalized-PB09/OPT-BIGINT-LIN/aries-da_nrp/normalized-aries-da_network_50_2__8_45__2048.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683096-1277506735/watcher-2683096-1277506735 -o /tmp/evaluation-result-2683096-1277506735/solver-2683096-1277506735 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683096-1277506735.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 5a6a489f861071b99676244553a9826e
RANDOM SEED=1788065401

node082.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.215
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.43
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.215
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1841168 kB
Buffers:         31308 kB
Cached:          87168 kB
SwapCached:       6436 kB
Active:          78264 kB
Inactive:        53452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1841168 kB
SwapTotal:     4192956 kB
SwapFree:      4139112 kB
Dirty:           11068 kB
Writeback:           0 kB
AnonPages:       12032 kB
Mapped:          11944 kB
Slab:            64324 kB
PageTables:       4196 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182472 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62348 MiB
End job on node082 at 2010-06-26 00:59:25